Experimental Study on Modified Bituminous Mix Using Waste High Density Polythene and Crump Rubber

Abstract

This paper represents an effort taken to produce modified bituminous mix and coated aggregates. Aggregates were coated with 6%, 8%, 10% of high density polythene and 8%, 10%, 12% of crump rubber were mixed in bitumen. Different moulds were prepared with different combinations and compared with conventional bitumen mixes by conducting marshall stability test to check its strength, flow value, stability value. Optimum percentage of crumb rubber was found to be 8%. Then crumb rubber percentage is kept constant and HDPE percentage is varied as 6%, 8%, 10%. Highest stability is achieved for all mix with 8% CRMB combination with 10% of HDPE giving more satisfied results comparing to conventional bitumen.